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EP-4740801-A1 - ELECTRIC WDT DISTRIBUTION TOOL

EP4740801A1EP 4740801 A1EP4740801 A1EP 4740801A1EP-4740801-A1

Abstract

An electric WDT distribution tool (WDT) is structurally simple and convenient-to-operate, can realize distribution synchronously during a dosing process, and can be adapted to baskets of different depths. The electric WDT distribution tool (WDT) includes a distributor body (1), where a powder inlet (2) is formed in a middle of the distributor body (1); a distribution module is further provided on the distributor body (1); the distribution module (1) is a vibratory distribution device or a rotary distribution device; the distributor body cooperates with a basket of a coffee maker; and coffee powders fall into the basket through the powder inlet (2), while being distributed by the distribution module.

Inventors

  • XIANG, JUN
  • ZHANG, Haijiao
  • WANG, YANG

Assignees

  • Zhuhai Luckyman Technology Co., Ltd.

Dates

Publication Date
20260513
Application Date
20250530

Claims (10)

  1. An electric Weiss Distribution Technique (WDT) distribution tool, characterized by comprising a distributor body (1), wherein a powder inlet (2) is formed in a middle of the distributor body (1); a distribution module is further provided on the distributor body (1); the distribution module comprises a rotary motor (3), a rotating ring (4), and a needle carrier (5); the rotating ring (4) is in a rotating fit with the powder inlet (2); the rotary motor (3) is provided at a side of the distributor body (1) and cooperates with an outer edge of the rotating ring (4); a plurality of vertical guide slots (6) are formed in an inner side of the rotating ring (4); a plurality of guide pins (7) are provided at an outer side of the needle carrier (5); the plurality of guide pins (7) respectively cooperate with the plurality of vertical guide slots (6); and the rotating ring (4) is configured to drive a distribution needle end of the needle carrier (5) to cooperate with an external basket.
  2. The electric WDT distribution tool according to claim 1, characterized in that the needle carrier (5) comprises a supporting shaft (8) and a plurality of supporting arms (9); a plurality of distribution needles (10) are provided on a lower end surface of each of the plurality of supporting arms (9); one end of the supporting arm (9) is connected to the supporting shaft (8); the guide pin (7) is provided at the other end of the supporting arm (9); and the supporting arm (9) cooperates with the vertical guide slot (6) through the guide pin (7).
  3. The electric WDT distribution tool according to claim 2, characterized in that the supporting arm (9) is an arcuate rod-like structure; the plurality of supporting arms (9) are uniformly provided at an outer side of the supporting shaft (8); and along a circumferential direction, the plurality of supporting arms (9) have a same arc direction.
  4. The electric WDT distribution tool according to claim 2, characterized in that an upper end of the supporting arm (9) is provided with a tapered protrusion (11); an upper end of the supporting shaft (8) is provided with a conical protrusion (12); and the tapered protrusion (11) and the conical protrusion (12) cooperate with a material falling within the rotating ring (4).
  5. The electric WDT distribution tool according to claim 1, characterized in that the vertical guide slot (6) has a rectangular structure and is formed in an upper end of the inner side of the rotating ring (4); two sides and a bottom of the guide pin (7) respectively match with two long side edges and a short bottom edge of the vertical guide slot (6); and the guide pin (7) is in a sliding fit with the vertical guide slot (6).
  6. The electric WDT distribution tool according to claim 1, characterized in that a lower end of the distributor body (1) is provided with a mounting plate (13); an upper end of the mounting plate (13) cooperates with a bottom of the outer edge of the rotating ring (4), and a lower end of the mounting plate (13) is provided with a basket locating groove (14); and the basket locating groove (14) matches with an outer edge of an upper end of the external basket in shape.
  7. The electric WDT distribution tool according to claim 6, characterized in that the basket locating groove (14) is provided with a plurality of magnets (15); and the plurality of magnets (15) magnetically cooperate with the outer edge of the upper end of the external basket.
  8. The electric WDT distribution tool according to claim 2, characterized in that a top cover (16) is provided on an upper end surface of the distributor body (1); a through hole (17) is formed in a middle of the top cover (16); an inner diameter of the through hole (17) is less than an inner diameter of the rotating ring (4); and ends of the plurality of supporting arms (9) are in a limiting fit with an edge of the through hole (17).
  9. The electric WDT distribution tool according to claim 1, characterized in that a plurality of stabilizing posts (18) are provided at an outer side of the distributor body (1); mounting through grooves (19) are respectively formed in middles of the stabilizing posts (18); the rotary motor (3) is provided in one of the mounting through grooves (19); and a vibration motor (20) is provided in another one of the mounting through grooves (19).
  10. An electric WDT distribution tool, characterized by comprising a distributor body (1), wherein a powder inlet (2) is formed in a middle of the distributor body (1); a distribution module is further provided on the distributor body (1); the distribution module comprises a vibration motor (20); a basket locating groove (14) is formed in a lower end of the distributor body (1); the basket locating groove (14) matches with an outer edge of a basket end of an external portafilter in shape; and the powder inlet (2) cooperates with the basket end of the external portafilter.

Description

TECHNICAL FIELD The present disclosure relates to distributors, and more specifically to an electric WDT distribution tool for applying the Weiss Distribution Technique (WDT) to coffee grounds. BACKGROUND Grinding coffee beans is a crucial step in espresso preparation, typically performed with an electric grinder due to its high speed and consistent particle size. However, during dosing, the fast discharge rate and fixed outlet angle often cause coffee grounds to bounce on the portafilter basket, leading to uneven distribution and spillage. After dosing, unevenly piled grounds require manual application of the Weiss Distribution Technique (WDT) to improve puck uniformity; this extra step reduces efficiency. Moreover, conventional (non-electric) WDT tools have fixed-length needles, so different basket depths necessitate multiple tools, increasing cost and storage requirements. It is therefore desirable to provide an electric WDT distribution tool that is simple, self-adjusting to various basket depths, and capable of synchronous vibration and rotation during dosing. SUMMARY In order to overcome shortages of the prior art, a technical problem to be solved by the present disclosure is to provide an electric WDT distribution tool that is structurally simple and convenient-to-operate, can realize distribution synchronously during a dosing process, and can be adapted to baskets of different depths. A technical solution employed by the present disclosure is as follows: An electric WDT distribution tool includes a distributor body, where a powder inlet is formed in a middle of the distributor body; a distribution module is further provided on the distributor body; the distribution module includes a rotary motor, a rotating ring, and a needle carrier; the rotating ring is in a rotating fit with the powder inlet; the rotary motor is provided at a side of the distributor body and cooperates with an outer edge of the rotating ring; a plurality of vertical guide slots are formed in an inner side of the rotating ring; a plurality of guide pins are provided at an outer side of the needle carrier; the plurality of guide pins respectively cooperate with the plurality of vertical guide slots; and the rotating ring is configured to drive a distribution needle end of the needle carrier to cooperate with an external basket. Further, the needle carrier includes a supporting shaft and a plurality of supporting arms; a plurality of distribution needles are provided on a lower end surface of each of the supporting arms; one end of the supporting arm is connected to the supporting shaft; the guide pin is provided at the other end of the supporting arm; and the supporting arm cooperates with the vertical guide slot through the guide pin. Further, the supporting arm is an arcuate rod-like structure; the plurality of supporting arms are uniformly provided at an outer side of the supporting shaft; and along a circumferential direction, the plurality of supporting arms have a same arc direction. Further, an upper end of the supporting arm is provided with a tapered protrusion; an upper end of the supporting shaft is provided with a conical protrusion; and the tapered protrusion and the conical protrusion cooperate with a material falling within the rotating ring. Further, the vertical guide slot has a rectangular structure and is formed in an upper end of the inner side of the rotating ring; two sides and a bottom of the guide pin respectively match with two long side edges and a short bottom edge of the vertical guide slot; and the guide pin is in a sliding fit with the vertical guide slot. Further, a lower end of the distributor body is provided with a mounting plate; an upper end of the mounting plate cooperates with a bottom of the outer edge of the rotating ring, and a lower end of the mounting plate is provided with a basket locating groove; and the basket locating groove matches with an outer edge of an upper end of the external basket in shape. Further, the basket locating groove is provided with a plurality of magnets; and the plurality of magnets magnetically cooperate with the outer edge of the upper end of the external basket. Further, a top cover is provided on an upper end surface of the distributor body; a through hole is formed in a middle of the top cover; an inner diameter of the through hole is less than an inner diameter of the rotating ring; and ends of the plurality of supporting arms are in a limiting fit with an edge of the through hole. Further, a plurality of stabilizing posts are provided at an outer side of the distributor body; mounting through grooves are respectively formed in middles of the stabilizing posts; the rotary motor is provided in one of the mounting through grooves; and a vibration motor is provided in another one of the mounting through grooves. The above solution has the following beneficial effects: The needle carrier can slide on the grooves through the guide pins to realize self-adaptive he